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Home > Electrical & Electronics > Electrical Control System > KOLLMORGEN AKM42E-EKGNR-01 Low Voltage Servo Motors

KOLLMORGEN AKM42E-EKGNR-01 Low Voltage Servo Motors

KOLLMORGEN AKM42E-EKGNR-01 Low Voltage Servo Motors thumbnail-3

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KOLLMORGEN AKM42E-EKGNR-01 Low Voltage Servo Motors photo-5

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

1Yr

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guizhou

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature -15℃~40℃ (standard)

Relative Humidity 5%~95% (non-condensing)

Storage Temperature -40℃~85℃

I. Overview

The KOLLMORGEN AKM42E-EKGNR-01 is a high-performance permanent magnet synchronous servo motor in the AKM series. It is specifically designed for scenarios in the industrial automation field that have strict requirements for "high-precision motion control, high power density, and strong environmental adaptability". Its core positioning is "a core drive component that provides stable power output and precise motion execution for various precision mechanical equipment".

As a classic model in the AKM series, this motor integrates Kollmorgen's core technologies in the field of motion control. It adopts high-performance permanent magnet materials and optimized electromagnetic design, achieving excellent dynamic performance and control precision within a compact structural size. It is widely used in fields such as electronic manufacturing (e.g., chip packaging equipment, PCB precision processing equipment), automated production lines (e.g., multi-axis linkage robotic arms, high-precision conveying systems), printing and packaging (e.g., high-speed register printing machines, film slitting machines), medical equipment (e.g., surgical robots, precision testing instruments), and high-end machine tools (e.g., small CNC machining centers).

In practical applications, the AKM42E-EKGNR-01 undertakes the key task of "receiving instructions from the servo driver, efficiently converting electrical energy into mechanical energy, and driving mechanical structures to complete precise position positioning, speed adjustment, and torque output". At the same time, it transmits real-time operating status data back through the built-in high-precision feedback device and cooperates with the driver to realize closed-loop control, ensuring the precision and stability of equipment operation. Compared with traditional asynchronous motors, it has core advantages such as "high power density, low torque ripple, fast dynamic response, and long service life". It can effectively solve pain points in industrial production such as "excessive equipment volume, insufficient operation precision, and high failure rate under complex working conditions", helping enterprises improve production efficiency and product quality.

II. Technical Parameters

(I) Dynamic Performance Parameters

Parameter Category	Specific Value	Description
Rated Power	1.5kW	Output power during long-term stable operation, meeting the power needs of medium and low-load precision equipment
Rated Continuous Torque	4.8N·m	Torque that can be continuously output at rated speed, adapting to the load requirements of most precision transmission scenarios
Peak Torque	14.4N·m	Maximum torque that can be output in a short time (usually within a few seconds), coping with instantaneous high loads such as equipment startup and emergency stop
Rated Speed	3000rpm	Maximum stable speed during normal operation, which can be smoothly adjusted within the range of 0-3000rpm
Stall Torque	12N·m	Maximum torque output when the motor is stalled, preventing the motor from being damaged due to overload when the equipment is stuck
Torque Ripple	≤±1%	The fluctuation of torque output during operation is extremely small, which effectively reduces mechanical vibration and improves operation stability
Moment of Inertia	0.0012kg·m²	Low moment of inertia design, featuring fast dynamic response, suitable for scenarios with high-frequency start-stop and rapid commutation

(II) Electrical and Feedback Parameters

Parameter Category	Specific Value	Description
Rated Voltage	380V AC (Three-phase)	Compatible with commonly used industrial three-phase power supply systems, and needs to be used with servo drivers of corresponding power levels
Rated Current	3.2A	Operating current under rated power, ensuring efficient operation of the motor with reasonable energy consumption
Insulation Class	Class F	Maximum allowable operating temperature is 155℃, adapting to high-temperature industrial environments and reducing the risk of insulation aging
Feedback Device	2048-line Incremental Encoder	Real-time detection of motor rotor position and speed, with high resolution, providing accurate data support for closed-loop control
Encoder Protection Class	IP67	The encoder has high protection capability and can adapt to humid and dusty industrial environments

(III) Structural and Environmental Parameters

Parameter Category	Specific Value	Description
Frame Size	42 (corresponding to frame outer diameter of 108mm)	Compact structural design, saving equipment installation space, suitable for miniaturized precision equipment
Installation Method	Flange Mounting (compliant with IEC standards)	Standardized installation interface, facilitating connection with various mechanical equipment and reducing integration difficulty
Protection Class	IP65	The whole machine is dust-proof and protected against low-pressure water spray, and can operate stably in dusty and humid workshop environments
Operating Temperature Range	-15℃~40℃ (standard)	Wide-temperature models are available with a range of -40℃~50℃, adapting to complex environments such as cold outdoors and high-temperature workshops
Storage Temperature Range	-40℃~85℃	Meeting the storage needs of equipment during transportation and long-term idleness, preventing damage to components
Weight	≤5.2kg	Lightweight design, facilitating installation and maintenance, and reducing the overall load of the equipment

III. Functional Features

(I) High Precision and Stability, Adapted to Precision Control Scenarios

Low Torque Ripple Design

With a torque ripple of ≤±1%, which is far superior to traditional motors (usually more than ±5%), the motor outputs extremely stable torque during operation. In vibration-sensitive scenarios such as electronic component packaging and optical lens processing, it can effectively avoid machining errors caused by torque ripple, improving product precision and yield rate.

High Dynamic Response Capability

Adopting a low moment of inertia (0.0012kg·m²) and optimized electromagnetic structure, it takes less than 30ms to accelerate from a standstill to the rated speed, and the speed adjustment is smooth without jitter. In the material sorting link of automated production lines, it enables robotic arms to start quickly and position accurately, shortening the single working cycle; in the register printing process of printing machines, it can match the printing speed in real time to avoid register deviation.

Precise Feedback and Closed-Loop Control

Equipped with a built-in 2048-line incremental encoder, it has high resolution and strong anti-interference ability, and can accurately detect the rotor position (angular precision ≤0.18°) and speed in real time. Cooperating with the servo driver, it can realize triple closed-loop control of position, speed, and torque. For example, in multi-axis linkage robotic arms, it ensures the coordinated movement of each axis, improving motion precision.

(II) High Power Density and Compact Structure, Saving Installation Space

Efficient Electromagnetic Design

Using high-performance neodymium-iron-boron permanent magnet materials and optimized stator winding structure, it achieves a rated power of 1.5kW and a continuous torque of 4.8N·m within the compact size of frame 42 (outer diameter 108mm). The power density is more than 30% higher than that of traditional motors of the same size. It is suitable for scenarios with limited installation space such as medical equipment and small CNC machining centers, helping to realize the miniaturized design of equipment.

Standardized Installation Interface

The flange mounting method complies with IEC standards and is compatible with the installation interfaces of most mechanical equipment on the market. Whether for new equipment integration or motor replacement in old equipment, there is no need for major modifications to the mechanical structure, which reduces installation costs and time costs.

(III) Strong Environmental Adaptability and High Reliability, Reducing Maintenance Costs

IP65 High Protection Class

The housing adopts a sealed design, which completely blocks dust intrusion and can withstand low-pressure water spray (such as workshop cleaning spray). In humid and dusty environments such as food processing workshops and textile mills, the motor can still operate stably for a long time, reducing failures caused by dust and water vapor intrusion.

Long-Life Component Selection

Industrial-grade high-precision deep groove ball bearings are selected, with a service life of ≥10,000 hours; the windings are made of Class F insulation materials and impregnated with special insulating paint, improving temperature resistance and corrosion resistance. In automated production lines that operate continuously for 24 hours, it can greatly reduce the frequency of motor maintenance and replacement.

Built-in Overheat Protection

Integrated with a PTC thermistor, it monitors the winding temperature in real time. When the temperature exceeds 130℃, it will immediately send a signal to the driver, triggering protective actions such as speed reduction and shutdown, preventing the motor from being burned due to overheating and prolonging its service life.

(IV) Practical Additional Functions, Improving Operation Convenience

Configurable Braking Option

Supports external electromagnetic brakes (to be selected separately), which take effect automatically when power is off, providing stable braking force (usually ≥5N·m). In vertical lifting equipment (such as small material elevators), it can prevent heavy objects from sliding down due to power failure; in precision positioning equipment, it can keep the mechanical structure stably at the target position, avoiding inertial deviation.

Compatibility with Multi-Brand Drivers

Through parameter configuration, it can be adapted to mainstream servo drivers such as Kollmorgen AKD series, Siemens SINAMICS series, and Mitsubishi MR-J series. No dedicated driver is required, which reduces system integration costs and improves selection flexibility.

IV. Application Fields

Electronic Manufacturing Field

In chip packaging equipment, it drives the packaging head to complete precise chip picking, positioning, and welding actions. The low torque ripple (≤±1%) ensures stable welding pressure and avoids chip damage; in PCB drilling machines, it drives the drill spindle to rotate at high speed (3000rpm) and move accurately, improving drilling precision (≤±0.01mm).

Automated Production Lines

It provides power for multi-axis linkage robotic arms. The high dynamic response (acceleration time

Printing and Packaging Industry

In high-speed register printing machines, it drives the plate cylinder and substrate to run synchronously. The low moment of inertia design realizes rapid speed adjustment and avoids register deviation; in film slitting machines, it controls the precise displacement and speed of the slitting knife, ensuring the slitting size error is ≤±0.1mm.

Medical Equipment Industry

In surgical robots, it drives the joints of the robotic arms to complete delicate movements. The low torque ripple and high positioning precision (angular error ≤0.18°) ensure the safety and accuracy of surgical operations; in precision testing instruments, it drives the testing probe to move smoothly, improving the reliability of testing data.

V. Common Faults and Solutions

(I) Startup Faults: Motor Fails to Start or Shuts Down Immediately After Startup

Fault Phenomenon	Possible Causes	Solutions
Motor has no response and no movement	1. Power supply not connected or abnormal voltage; 2. Driver failure; 3. Loose wiring between motor and driver	1. Check the three-phase 380V power supply lines (air switch, contactor), and use a multimeter to measure whether the voltage is normal; 2. Check the driver fault codes (such as "overvoltage", "undervoltage") and troubleshoot according to the manual; 3. Check the motor power lines (U/V/W) and encoder signal lines, reinsert and fasten them to ensure good contact.
Motor vibrates and shuts down after startup	1. Incorrect encoder wiring or encoder failure; 2. Incorrect driver parameter configuration; 3. Motor stalling	1. Verify whether the encoder wiring (A/B/Z phases) matches the driver, use an oscilloscope to detect the encoder output signal, and replace the encoder if the signal is abnormal; 2. Check whether the motor parameters (such as rated power, moment of inertia) in the driver match the AKM42E-EKGNR-01, and reload the corresponding parameter template; 3. Check whether the mechanical transmission parts (such as couplings, guide rails) are stuck, clean up obstacles and lubricate.

(II) Operation Faults: Excessive Motor Vibration, Abnormal Noise, or Unstable Speed

Fault Phenomenon	Possible Causes	Solutions
Severe vibration with noise during operation	1. Excessive coaxiality deviation between motor and load; 2. Torque ripple exceeding the limit; 3. Bearing wear	1. Stop the machine, remove the coupling, use a dial indicator to measure the coaxiality between the motor shaft and the load shaft (should be ≤0.05mm), adjust the installation position for calibration; 2. Check the driver's torque compensation parameters and enable the "torque ripple suppression" function (if supported); 3. Disassemble the motor end cover, check whether the bearing is worn or stuck, and replace the bearing (model compatible with series 6204).
Unstable speed (fluctuates fast and slow)	1. Improper driver speed loop parameters; 2. Power supply voltage fluctuation; 3. Excessive load fluctuation	1. Optimize the speed loop proportional gain (P) and integral time (I) through the driver software, and adjust gradually until the speed is stable (operation by professionals required); 2. Measure whether the input power supply voltage fluctuation exceeds ±10%, and if so, install a voltage stabilizer or UPS; 3. Check whether the equipment load is uneven (such as material accumulation), and optimize the process to reduce load fluctuation.

(III) Protection Faults: Motor Overheating or Driver Alarm

Fault Phenomenon	Possible Causes	Solutions
Motor housing temperature is too high (exceeding 70℃), and the driver reports "overheating"	1. Ambient temperature exceeding 40℃; 2. Poor motor heat dissipation; 3. Long-term overload operation	1. Check the equipment operating environment; if the temperature is too high, install an axial fan (air speed ≥1.5m/s) or air conditioner to ensure the ambient temperature is ≤40℃; 2. Clean the dust and oil on the motor surface, ensure the heat sink is unobstructed and well-ventilated; 3. Check the load rate displayed by the driver (should be ≤100%); if overloaded for a long time, re-evaluate the load and replace with a motor of higher power if necessary.
Driver reports "overcurrent" and the motor stops running	1. Motor winding short circuit or grounding; 2. Driver power module failure; 3. Instantaneous excessive load	1. Disconnect the motor wiring, use a multimeter to measure the inter-phase resistance of the windings (should be equal, about 10-20Ω) and the insulation resistance to ground (should be ≥50MΩ); if the resistance is abnormal, send the motor for repair; 2. Turn off the power, check whether the driver power module (IGBT) is burned; if damaged, contact professionals for replacement; 3. Analyze the equipment working conditions, avoid frequent emergency stops and heavy load impacts, and optimize the control logic to extend the acceleration time.

(IV) Feedback Faults: Deterioration of Position or Speed Control Precision

Fault Phenomenon	Possible Causes	Solutions
Increased positioning precision deviation (exceeding ±0.05mm)	1. Encoder zero offset; 2. Excessive mechanical transmission backlash; 3. Improper driver parameters	1. Perform zero calibration on the encoder through the driver software (operate according to the calibration procedure) to re-establish the position reference; 2. Check the transmission parts such as couplings and lead screws; if worn or with excessive backlash, replace the parts or adjust the backlash (such as adding gaskets); 3. Optimize the driver's position loop proportional gain and feedforward parameters to improve tracking precision.
Unstable speed feedback with fluctuating display	1. Encoder signal line interference; 2. Loose encoder connector; 3. Internal encoder failure	1. Replace the encoder signal line with a shielded cable, ground the shield layer at one end (connected to the control cabinet ground bar), and route it separately from the power line (with a spacing of ≥15cm); 2. Check the encoder connector, reinsert and fasten it to ensure good pin contact; 3. Use an oscilloscope to detect the encoder output waveform; if the waveform is disordered, replace the encoder.